NDLI: The ABCG transporter PEC1/ABCG32 is required for the formation of the developing leaf cuticle in Arabidopsis.

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The ABCG transporter PEC1/ABCG32 is required for the formation of the developing leaf cuticle in Arabidopsis.

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The ABCG transporter PEC1/ABCG32 is required for the formation of the developing leaf cuticle in Arabidopsis.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Fabre, Guillaume Garroum, Imène Mazurek, Sylwester Daraspe, Jean Mucciolo, Antonio Sankar, Martial Humbel, Bruno M. Nawrath, Christiane
Description	Country affiliation: Switzerland Author Affiliation: Fabre G ( Department of Plant Molecular Biology, University of Lausanne, Biophore Building, CH-1015, Lausanne, Switzerland.); Garroum I ( Department of Plant Molecular Biology, University of Lausanne, Biophore Building, CH-1015, Lausanne, Switzerland.); Mazurek S ( Department of Plant Molecular Biology, University of Lausanne, Biophore Building, CH-1015, Lausanne, Switzerland.); Daraspe J ( Department of Chemistry, University of Wroclaw, 14 F. Joliot-Curie, 50-383, Wroclaw, Poland.); Mucciolo A ( Electron Microscopy Facility, University of Lausanne, Biophore Building, CH-1015, Lausanne, Switzerland.); Sankar M ( Electron Microscopy Facility, University of Lausanne, Biophore Building, CH-1015, Lausanne, Switzerland.); Humbel BM ( Department of Plant Molecular Biology, University of Lausanne, Biophore Building, CH-1015, Lausanne, Switzerland.); Nawrath C ( Electron Microscopy Facility, University of Lausanne, Biophore Building, CH-1015, Lausanne, Switzerland.)
Abstract	The cuticle is an essential diffusion barrier on aerial surfaces of land plants whose structural component is the polyester cutin. The PERMEABLE CUTICLE1/ABCG32 (PEC1) transporter is involved in plant cuticle formation in Arabidopsis. The gpat6 pec1 and gpat4 gapt8 pec1 double and triple mutants are characterized. Their PEC1-specific contributions to aliphatic cutin composition and cuticle formation during plant development are revealed by gas chromatography/mass spectrometry and Fourier-transform infrared spectroscopy. The composition of cutin changes during rosette leaf expansion in Arabidopsis. C16:0 monomers are in higher abundance in expanding than in fully expanded leaves. The atypical cutin monomer C18:2 dicarboxylic acid is more prominent in fully expanded leaves. Findings point to differences in the regulation of several pathways of cutin precursor synthesis. PEC1 plays an essential role during expansion of the rosette leaf cuticle. The reduction of C16 monomers in the pec1 mutant during leaf expansion is unlikely to cause permeability of the leaf cuticle because the gpat6 mutant with even fewer C16:0 monomers forms a functional rosette leaf cuticle at all stages of development. PEC1/ABCG32 transport activity affects cutin composition and cuticle structure in a specific and non-redundant fashion.
File Format	HTM / HTML
ISSN	0028646X
Issue Number	1
Volume Number	209
e-ISSN	14698137
Journal	New Phytologist
Language	English
Publisher	Wiley
Publisher Date	2016-01-01
Publisher Place	Great Britain (UK)
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Botany Arabidopsis Genetics Gene Expression Regulation, Plant Membrane Lipids Metabolism Atp-binding Cassette Transporters Growth & Development Ultrastructure Arabidopsis Proteins Flowers Gene Knockout Techniques Mutation Permeability Plant Epidermis Plant Leaves Plants, Genetically Modified Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Physiology Plant Science

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